Film-winding apparatus.



H. 1. HAMANN.

FILM WINDINU APPARATUS.

AWUL'AHUN m50 sim, 2. lum.

lzllvntvd J illy 25, HMS

AES

HENRY J. HAMANN, 0F SOUTH CHICAGO, ILLINOISt rLM-WINMNG Arrana'ros.

Specification of Letters Patent.

. Application :um september 2, 19in v serial No. 859,748.

To (1.7.11 whom il, -m fly nance/ru:

lle it known that l, Henny J. HAMANN, a citizen ofthe v.United States, and a resident of the city of South Chicago, county of (look, andtate of Illinois, have invented certain new and useful Improvements in l-`ilmf\'\/'inding Apparatus, of which the following is a specification.

My invention relates to improvements in ing my invention, Fig. 2 is a section taken on line a; c of Fig. l, the detachable ring and disk of the device being shown detached in dotted lines, Fig-3 is atop-planyiew of the film magazine with the cover thereof broken away to expose underlying parts, Fig.l 4 is a section taken on line y-y of Figy, Fig. 5 is an elevation ofthe detachable ring and disk of' the vapparatus looking at the inner side thereof, and Fig. (Sis an enlarged sectional detail of the filinmagazine.

lThe preferred form of construction as illustrated in the drawings comprises a disk 1 which is fixed to a'shal'it2 mounted in suitable bearings 3, said, shaft 'being driven through the medium of a belt 4 which passes around a channel pulley 5 fixed to said shaft. The belt 4 in the employment of the device, is driven from the projecting apparatus so as to secure proper timing for the film feed as will 'ne und :rstood by those skilled in the.

art. The disk lis provided at one side-with a. central recess (3; Cooperating with the disk 1 13g-.l second disk 7 upcn one side of which 'is mounted a broken spring ring 8.

which is adapted to be compressed so as to enter the recess ,G and engage with the outer wall thereof upon expansion of said ring when the same is released. In order to permit of the flexing of the ends of ring 8 during expansion or contraction of thei latter, only the central portion thereof is secured as nular flange l() which lis a thereof.

'at 9 tothe disk 7, the ends of said ring be ing free for flexing moriement. i

The inner or engaging end of ring 8 is provided with an-outwardl.

l dsitpted, .upon insertion 'of said'ring. into the recess '6, to engage behind an annular inwardly extending Patented July 25, 1916.

flange 11 provided at the outer edge of the outer wall of said recess, :1s-clearly shown in Fig. 2. This arrangement serves to lock ring v8 and disk 1 against lrelativeaxial movement and hence to prevent accidental disengagement of said`rin With this oonstruction it will be seen t at disengagement of said ring from disk 1. isl effected only upon first contracting the ring .in order to release the flange 10 from .engagement with flange, 11. Provided'- at'fthe inner side of ring 8, adjacent the ends 'thereof are-finger pieces 12 through the mediumv of fwhiehsaid ring ends may be readily fleed inwardly in the manner above mentioned; -The disk .7 iscut away at 13 in order to afford clearance for said finger. pieces in the .elgagement t Projecting outwardly from the ends of ring 8 adjacent finger pieces 12 are substantially `radially disposed' fingers 14 which loosely lengage withloopsll provided at the outer side of diskA 7; Said fingers 14 and loops 15 serve as -guides-for the endsof ring 8 in theexpansion and contraction of the latter.

Arranged above the reel which is constituted hy disks 1 and r7 and .ring S'is a horizontally disposed film `magazine 16 the upper side ofwhich is open and providedwith a cover 17 hinged at 18.Y Rotatably mounted in magazine -lfY isf-af'film support 19, ball bearings '20 .being-interposed between said film support and the bottom of said magazine to alleviate vfriction. Provided upon the upper side of support 19` is a central hub 21. Arranged adjacent said hub atene side thereof is a pair .of guide rollers 22 sup-A ported byfan arm 23 which is hinged at 24 to the peripheral wall of magazine 1G to extend inwardly therefrom,as clearlyfshoW-n in Fig. 3. lheserollers are arranged with their axes substantially parallel to that of the reel and when in operative position they lie between the planes of the ends Vof the hub so that they' prevent any tendency in the film to lateral movement of the convolulions as they are withdrawn from the reel.

In' the operation of the apparatus the roll of film is first placed upon the support 19 in the magazine 16, the inner end of the film being passed between the guide rollers'22 1n .the manner shown in Eig. 3 so as to ple-V vent pressi-ng o' the film against the hub 21 es results Without 'the use of guide rollers as here arranged. The-engagement of-the Vfilm againt the hub 21 in u nwlnding not infrequent y mars the latter and results in friction` and hence in hard. running. 'With the rollers 12 this -contct' 'witlif the hub 21 is overcome with thecorrespoxfniing. obviation of the objections mentioned. After V passing from .between the rollers 22 .the ilm.v is passed over a, guide roller 25 arranged aducent theperiphc-ry of the-magazine. 16 and fiencedownwardly between guide rollers V2G provided-inl the bottom -vofgsaid magazine to engagement with the ring 8 upon which'the same iswound through rotation of shaft 2.

Whe-'n' the film has been fullylwound upon said ring 8; the snme'isreadil'y replaced. into;

the magazine '16 b'y simply engaging the finger 'pieces 12und pressing the same inwardly tocompr'ees or'contract said ring 8 until -the same' isI disengaged from the recess 6; Whenthis is done, the xfingS and disk 7 muy be' lifted Vto )osition-.over thenuxgazihe l'und the film leposited'onto thefsupport-Y ing element 19 through compression ofzo-onf traction of said ring -in= orderfto'releaseth'e' film. In t e insertion of ,a film into the magazine t1 e cover 16 ande-rm 23 are rocked outwardly, 'as will bei'readilylunderstood.

Afterthe ring' @has been detachedifrom: `disk l-and before the :filml is dropped there fr orninto the magazine, the pressurepn said 'ring by the fingersmaybereleescd in order to permit of' temporary vexpe-nsion of' lthe ring so as to frictiona-llyengagel withv the film surrounding said ring and thus prevent accidental' displacement of. thefilmv thereabove themagnzine.. Y WhileT have ilustrated and desribed the preferred Vform o constructonfor carrying my-invention into effeet,.t-his'is capable of 'v verietion end modification without depart- -ters Patent, is:

1. An app'giratus of the clziss described4 comprisinga- 'magazines horizontally dissafid magazine, afcentrfil hubfon 'the upper posed film' support rotatably moujntedfiuv side 1f-said' Isupport and a-stationary guidav ing roller'-arranged adjacent said hub for cooperation with thc filxni'n unwindingsad roller having its axis Substantially parallel tothe axis 'ofthe reel and iy'ing between the planes of the ,ends'of the hub; s'ubstz'mtinI ly`I es described.

comprising a. mzlgaizine,e hori'luontelly disposed flm'.` su'pp`or`t 'rotatablyl mountedl in said mtgazlne, u central-hub on. .th'e upper side` of sziid support; e su porting, arm;

'hingedly connected with thef outer' Well 'of said magazme 1-nd' projecting' iinwardly tli'cr'ero-in;I guiding roller mounted on An 'appara'tus v'of` the class described l i 75. sada'rrn an'dljpositxoned adjacent' saidhubfor coperution'With the'lm in unwind'rx-ig@v 'i An apparatusgoffrthe -clssfdescggibed comprising amagazine-a lhorizontally disposed" 1m'"s'uppo'rt. rotatbly --mounted in seid 'x'nagai-nefjV a. central hubfon-f-Athe-upper;

side' `of saidf "'suppQrt; eg supporting 'erm' hingedly'- connected with the/"outer well Q i L' nfa'ga'zinefand proj eating inwardly :therefrom-g' and a.-pir'-of guidingirollers mounted 'o'n said rxnyond positimef'llgrd-f jacent-said. hub for coperatiomjwith 'the film-in unwindifng,f substantially as de- '-neme'to this specification inthe presepe of 

